Приведите дроби к общему знаменателю: (a-2b)/(b^2-a^2) и 5b/(4a-4b).

\[\frac{a - 2b}{b^{2} - a^{2}} = \frac{2b - a^{\backslash 4}}{(a - b)(a + b)} =\]

\[= \frac{8b - 4a}{4\left( a^{2} - b^{2} \right)};\]

\[\frac{5b}{4a - 4b} = \frac{5b^{\backslash a + b}}{4(a - b)} = \frac{5ab + 5b^{2}}{4\left( a^{2} - b^{2} \right)}.\]